Accès ouvert déclaré 2025 article

Euclid : Early Release Observations – Interplay between dwarf galaxies and their globular clusters in the Perseus galaxy cluster

T. Saifollahi, A. Lançon, M. Cantiello, J.-C. Cuillandre, M. Béthermin, D. Carollo, P.-A Duc, A. Ferré-Mateu, N. A. Hatch, M. Hilker, L. K. Hunt, F. Marleau, J. Román, Rubén Sánchez-Janssen, C. Tortora, M Urbano, Karina Voggel, M. Bolzonella, H. Bouy, Matthias Kluge, C. Stone, C Giocoli, J. H. Knapen, M.N Le, M. Mondelin, N. Aghanim, B Altieri, S. Andreon, N. Auricchio, C. Baccigalupi, D Bagot, M Baldi, A. Balestra, S Bardelli, Alberto Basset, P Battaglia, A Biviano, Andrea Bonchi, D. Bonino, William Bon, E. Branchini, M Brescia, J Brinchmann, S. Camera, V Capobianco, J. Carretero, S. Casas, M Castellano, G Castignani, S Cavuoti, K. C. Chambers, A. Cimatti, C. Colodro-Conde, G. Congedo, C.J. Conselice, L Conversi, F Courbin, H. M. Courtois, M. Cropper, A da Silva, H. Degaudenzi, G. De Lucia, M. Douspis, F. Dubath, C. A. J. Duncan, S Dusini, S. Escoffier, M. Farina, R. Farinelli, F Faustini, S. Ferriol, S. Fotopoulou, M Frailis, E. Franceschi, M Fumana, K. George, B Gillis, J. Graciá‐Carpio, A. Grazian, F. Grupp, S. V. H. Haugan, J. Hoar, H. Hoekstra, W. Holmes, I. Hook, F Hormuth, M. Jhabvala, E Keihänen, S. Kermiche, A. Kiessling, B. Kubik, M Kümmel, M Kunz, H Kurki-Suonio, O. Lahav, R. Laureijs, A.M.C Le Brun, D. Le Mignant, S Ligori, P. B. Lilje, V. Lindholm, I Lloro, E. Maiorano, O Mansutti, O Marggraf, M. Martinelli, N. Martinet, R Massey, S. Maurogordato, E. Medinaceli, S. Mei, Y. Mellier, E Merlin, G Meylan, M. Moresco, L. Moscardini, R. Nakajima, C. Neissner, S.-M Niemi, C. Padilla, S Paltani, F. Pasian, K Pedersen, Will J. Percival, V. Pettorino, S Pires, G Polenta, M. Poncet, L. A. Popa, L. Pozzetti, F Raison, R Rebolo, A Renzi, J Rhodes, G. Riccio, E. Romelli, M. Roncarelli, R. Saglia, Z Sakr, A.G. Sánchez, D. Sapone, B. Sartoris, J.A Schewtschenko, P. Schneider, G. Seidel, M. D. Seiffert, L. Stanco, J Steinwagner, P. Tallada-Crespí, I Tereno, Sune Toft, F. Torradeflot, A. Tsyganov, I. Tutusaus, L Valenziano, J. Valiviita, A Veropalumbo, J Weller, G. Zamorani, E. Zucca, C. Burigana, J. Martín-Fleitas, V. Scottez

12Citations signalées, ce qui n’est pas une note de qualité

130Institutions déclarées

19Pays d’affiliation déclarés

Rattachement africain : fr, it, es, gb, at, de, sk, ca, au, us, pt, ch, no, nl, dk, fi, lb, ro, cl. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

We present an analysis of globular clusters (GCs) of dwarf galaxies in the Perseus galaxy cluster that explores the relationship between dwarf galaxy properties and their GCs. Our focus is on GC numbers ( N GC ) and GC half-number radii ( R GC ) around dwarf galaxies, and their relations with host galaxy stellar masses ( M * ), central surface brightnesses ( μ 0 ), and effective radii ( R e ). This work is unique due to its large sample size and the absence of pre-selection based on μ 0 and R GC for dwarf galaxies. Interestingly, we find that at a given stellar mass, R GC is almost independent of the host galaxy μ 0 and R e , while R GC / R e depends on μ 0 and R e . Lower surface brightness and diffuse dwarf galaxies show R GC / R e ≈ 1, while higher surface brightness and compact dwarf galaxies show R GC / R e ≈ 1.5–2. This means that for dwarf galaxies of similar stellar mass, the GCs have a similar median extent; however, their distribution is different from the field stars of their host. Additionally, low surface brightness and diffuse dwarf galaxies on average have a higher N GC than high surface brightness and compact dwarf galaxies at any given stellar mass. We also find that ultra-diffuse galaxies (UDGs) and non-UDGs in the sample have a similar R GC , while UDGs have a smaller R GC / R e (typically less than one) and a three to four times higher N GC than non-UDGs. Furthermore, when examining nucleated versus non-nucleated dwarf galaxies, we found that for M * > 10 8 M ⊙ , nucleated dwarf galaxies seem to have a smaller R GC and R GC / R e , with no significant differences seen between their N GC except at M * < 10 8 M ⊙ , where the nucleated dwarf galaxies tend to have a higher N GC . Lastly, we explored the stellar-to-halo mass ratio (SHMR) of dwarf galaxies (halo mass based on N GC ) and conclude that the Perseus cluster dwarf galaxies follow the expected SHMR at z = 0 extrapolated down to M * = 10 6 M ⊙ .

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref: <i>Euclid</i> : Early Release Observations – Interplay between dwarf galaxies and their globular clusters in the Perseus galaxy cluster
Date Crossref: 01/11/2025
Éditeur: EDP Sciences
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Observatoire astronomique de Strasbourg Collurania Teramo Observatory Centre National de la Recherche Scientifique Université Paris Cité Commissariat à l'Énergie Atomique et aux Énergies Alternatives Université Paris-Saclay Astrophysique, Instrumentation et Modélisation CEA Paris-Saclay Trieste Astronomical Observatory Universidad de La Laguna Instituto de Astrofísica de Canarias University of Nottingham Arcetri Astrophysical Observatory Universität Innsbruck Universidad Complutense de Madrid Royal Observatory UK Astronomy Technology Centre Astronomical Observatory of Capodimonte Osservatorio di Astrofisica e Scienza dello Spazio Université de Bordeaux Institut Universitaire de France Laboratoire d'Astrophysique de Bordeaux Max Planck Institute for Extraterrestrial Physics Max Planck Institute for Astronomy Geophysical Division of the Earth Science Institute of the Slovak Academy of Sciences Mila - Quebec Artificial Intelligence Institute Université de Montréal Istituto Nazionale di Fisica Nucleare, Sezione di Bologna Astronomy and Space Institut d'Astrophysique Spatiale Engineering Science Analysis (United States)Brera Astronomical Observatory Scuola Internazionale Superiore di Studi Avanzati Institute for Fundamental Physics of the Universe Centre National d'Études Spatiales Osservatorio astronomico di Bologna University of Bologna Osservatorio Astronomico di Padova European Space Agency United Kingdom Space Agency Osservatorio Astrofisico di Torino Aix-Marseille Université Laboratoire d’Astrophysique de Marseille Château Gombert Istituto Nazionale di Fisica Nucleare, Sezione di Genova University of Genoa Federico II University Hospital Universidade do Porto Institute of Astrophysics and Space Sciences Istituto Nazionale di Fisica Nucleare, Sezione di Torino University of Turin National Institute for Astrophysics Port d'Informació Científica Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas RWTH Aachen University Astronomical Observatory of Rome Istituto Nazionale di Fisica Nucleare, Sezione di Napoli Naples Anesthesia & Physician Associates University of Hawaii System University of Edinburgh SKA Observatory European Space Research Institute Lyon 1 Université Institute of Nuclear Physics of Lyon Institut de Physique des 2 Infinis de Lyon Institució Catalana de Recerca i Estudis Avançats Institut Català de Ciències del Clima Lyon College University College London University of Lisbon University of Geneva Istituto Nazionale di Fisica Nucleare, Sezione di Padova Centre de physique des particules de Marseille Institute for Space Astrophysics and Planetology University of Bristol Bristol Robotics Laboratory Ludwig-Maximilians-Universität München University of Oslo Leiden University Jet Propulsion Laboratory Lancaster University Felix Scholarship DAWN Center for Independent Living Technical University of Denmark Goddard Space Flight Center Laboratoire de Physique Théorique Helsinki Institute of Physics University of Groningen Astronomical Institute of the Slovak Academy of Sciences Université Paris Sciences et Lettres Observatoire de Paris Sorbonne Université Laboratoire Univers et Théories University of Milan Istituto Nazionale di Fisica Nucleare, Sezione di Milano University of Bonn Istituto Nazionale di Fisica Nucleare, Sezione di Roma I Université Côte d'Azur Lagrange Laboratory Observatoire de la Côte d’Azur International University of Beirut University of California, Berkeley Institut d'Astrophysique de Paris École Polytechnique Fédérale de Lausanne Institute for High Energy Physics European Space Research and Technology Centre University of Copenhagen University of Waterloo Perimeter Institute Institute of Space Science - INFLPR Subsidiary Consejo Superior de Investigaciones Científicas Unidades Centrales Científico-Técnicas University of Padua Université Toulouse III - Paul Sabatier Université Fédérale de Toulouse Midi-Pyrénées University of Saint Joseph Heidelberg University St. Joseph Medical Center Institut de Recherche en Astrophysique et Planétologie Heidelberg Institute for Theoretical Studies University of Chile Park University Institut d'Estudis Espacials de Catalunya Institute of Space Sciences Universidad Politécnica de Cartagena California Institute of Technology Infrared Processing and Analysis Center Istituto di Radioastronomia di Bologna Université de Lille Université Catholique de Lille

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Galaxies: Formation, Evolution, Phenomena

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